References of "2007"
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See detailPMTIC - Plan Mobilisateur des Technologies de l'Information et de la Communication
Georges, François ULg; Géron, Stéphanie ULg; Jérôme, Françoise ULg et al

Report (2007)

Projet de recherche-action visant la formation des demandeurs d'emploi en Région Wallonne.

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See detailIdentités et capital social en Wallonie
Italiano, Patrick ULg; Fontaine, Sébastien ULg; Pieters, Jérôme ULg et al

Report (2007)

Le rapport analyse les résultats d'une enquête en face à face en Wallonie et à Bruxelles sur les identités (belge, wallonne, européenne), le capital social (confiance, insertion sociale, participation ... [more ▼]

Le rapport analyse les résultats d'une enquête en face à face en Wallonie et à Bruxelles sur les identités (belge, wallonne, européenne), le capital social (confiance, insertion sociale, participation associative), la satisfaction quant à différents domaines de vie et le sentiment de sécurité. [less ▲]

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See detailAtelier 1: la démarche expérimentale comme référent externe à l'autorité du professeur ... ou quand le bruit et l'action sont synonymes d'apprentissage et de compétences...
Hindryckx, Marie-Noëlle ULg; Daussogne, Christine

in Puzzle (2007), (23), 28-29

Comment mener une démarche expérimentale en classe de sciences. Mise en situation concrète du public pour dégager des pistes de réponses aux questions suivantes: que fait-on en classe lorsqu'on ... [more ▼]

Comment mener une démarche expérimentale en classe de sciences. Mise en situation concrète du public pour dégager des pistes de réponses aux questions suivantes: que fait-on en classe lorsqu'on expérimente? Quel est le rôle de l'élève? Celui du professeur? Quels sont les avantages de travailler de la sorte? Qui fait "Autorité" dans tout cela?... Réflexions étayées par des résultats de recherche-action au fondamental [less ▲]

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See detailBiofilms endodontiques et infections tardives des prothèses totales de hanche
Goffart, Joseph ULg; Gillet, Philippe ULg

in Revue Médicale de Liège (2007), 62(12), 736-42

Biofilms are well recognised in different settings. Endodontic biofilms containing bacteria responsible for bacteraemia and secondary infection of total hip arthroplasties (THA) represent a diagnostic ... [more ▼]

Biofilms are well recognised in different settings. Endodontic biofilms containing bacteria responsible for bacteraemia and secondary infection of total hip arthroplasties (THA) represent a diagnostic challenge because they are often asymptomatic. Their treatment is difficult and inadequate management of such unrecognised sources of systemic infection can lead to the devastating situation of an infected arthroplasty necessitating implant removal, long term antibiotic treatment and secondary implantation of a new prosthesis. Since about ten percent of secondary infected THA can have a dental origin, this article is intended to give guidelines to all intervening care providers: general practitioner, orthopaedic surgeon and dentist. [less ▲]

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See detailFaisabilité de la mise en place d’un outil de mesure de la charge de travail des magistrats destiné au siège : conclusions d’une recherche.
Delvaux, David ULg

Conference (2007, December)

Présentation des résultats d'une recherche mandatée par la Politique Scientifique Fédérale et le Ministère de la Justice et intitulée: "Etude de faisabilité de la mise en place d'un outil de mesure de la ... [more ▼]

Présentation des résultats d'une recherche mandatée par la Politique Scientifique Fédérale et le Ministère de la Justice et intitulée: "Etude de faisabilité de la mise en place d'un outil de mesure de la charge de travail destiné au siège". [less ▲]

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See detailIntravenous iron therapy restores functional iron deficiency induced by infliximab
Katsanos, Konstantinos; Cavalier, Etienne ULg; Ferrante, Marc et al

in Journal of Crohn’s and Colitis [=JCC] (2007), 1

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See detailLe réveil de l’immatériel. La production onirique du patrimoine des Indiens Zápara (Haute Amazonie)
Bilhaut, Anne-Gaël ULg

Doctoral thesis (2007)

The Zapara Indians in the Upper Amazon are on the verge of disappearing from the linguistic map. This is a fact. And yet, their emergence within the political landscape in Ecuador (but not yet in Peru ... [more ▼]

The Zapara Indians in the Upper Amazon are on the verge of disappearing from the linguistic map. This is a fact. And yet, their emergence within the political landscape in Ecuador (but not yet in Peru), has provided them with a greater international visibility as an indigenous group. Most unusually, the accounts of dreams become one of the key elements of new forms of identity practices and identification processes – as those narrated here by two Zapara political leaders will attest. In search of their material and immaterial heritage, these leaders make use of the realm of dreams, using occurred dreams to orient their choices in the reconstruction of a collective memory. The dream, as a tool for engaging in a regredient process or in the return into the past, provides the historical elements that the Indians will then re-inject into their present in order to construct new “traditions”. In this dissertation, I will be describing the mechanisms, the learning of, and the local theories concerning the experience of dreams. In order to be understood, the dream must first circulate, and must have an issuer as a point of departure. Dreaming is also the means for a privileged relationship between human and non- human beings. Throughout this thesis, various systems of memory will be examined based upon empirical data revealing of the dreamt experience, but also of daily life, such as new teaching methods, or the creation of artefacts, produced both by ancestors or contemporaries. These accounts will help us to understand this new process of “Zaparaisation”, which depends as much on a process of ethno-archiving than on ethno-museography, and which awakens the immaterial. [less ▲]

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See detailLabor et Complexe, c'est fini
Habrand, Tanguy ULg

Article for general public (2007)

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See detailApproche exploratoire des modèles économiques des sociétés de services actives dans le secteur Open Source
Desmecht, James; Lisein, Olivier ULg; Pichault, François ULg

E-print/Working paper (2007)

Le secteur Open Source connaît une profonde mutation: à côté de l’idéologie libertaire prônée par ses défenseurs, il migre vers une "économie de marché" au sein de laquelle les acteurs développent ... [more ▼]

Le secteur Open Source connaît une profonde mutation: à côté de l’idéologie libertaire prônée par ses défenseurs, il migre vers une "économie de marché" au sein de laquelle les acteurs développent désormais de réelles stratégies commerciales. A partir d’une étude exploratoire, basée sur l’analyse de six cas d’entreprises, notre recherche met en évidence les modèles d'affaires privilégiés par ces sociétés pour positionner leur offre de produits/services et générer un retour lucratif à leurs activités. Synthétisés au travers de trois approches distinctes – les logiques de la complexification, du système clos et de l’intermédiation –, ces modèles économiques reflètent des positionnements foncièrement différents par rapport à la philosophie Open Source et soulignent les ressources (au sens de Barney, 1991) que les entreprises mobilisent pour créer un lien de dépendance envers leur clientèle et se forger un avantage concurrentiel durable. [less ▲]

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See detailApplication de la GnRH au traitement de l'infertilité chez la vache
Hanzen, Christian ULg

Conference (2007, December)

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See detailCessation versus continuation of 6-month migraine preventive therapy with topiramate (PROMPT): a randomised, double-blind, placebo-controlled trial
Diener, Hans-Christoph; Agosti, Reto; Allais, Gianni et al

in Lancet Neurology (2007), 6(12), 1054-1062

Background Use of preventive therapy for migraine is often recommended for only 6-9 months, but no randomised, placebo-controlled trials have investigated migraine frequency after the end of prophylaxis ... [more ▼]

Background Use of preventive therapy for migraine is often recommended for only 6-9 months, but no randomised, placebo-controlled trials have investigated migraine frequency after the end of prophylaxis. We assessed the effects of discontinuation of topiramate after a treatment period of 6 months. Methods 818 patients who have migraines were enrolled from 88 clinics in 21 countries. After a 4-8-week lead-in period, patients received topiramate in a 26-week open-label phase. Daily dose was increased from 25 mg to 100 mg in steps of 25 mg every week; the dose could be adjusted further in the range 50-200 mg/day, but was stable for the final 4 weeks. Patients were randomly assigned to continue this dose or switch to placebo for a 26-week double-blind phase. The primary endpoint was the difference in number of days with migraine during the last 4 weeks of the double-blind phase compared with the last 4 weeks of the open-label phase. Analysis was by intention to treat. This trial is registered with EudraCT, number 2005-000321-29. Findings 559 patients (68.3%) completed the open-label phase; 514 entered the double-blind phase and were assigned to topiramate (n=255) or placebo (n=259). The mean increase in number of migraine days was greater in the placebo group (1.19 days in 4 weeks, 95% CI 0.71 to 1.66; p < 0.0001) than in the topiramate group (0.10, -0.36 to 0.56; p=0.5756; mean difference between groups -1.09, -1.75 to -0.43). Patients in the placebo group had a greater number of days on acute medication than did those in the topiramate group (mean difference between groups -0.95, -1.49 to -0.41; p=0.0007). Quality of life, as assessed by the MIDAS questionnaire, fell in the placebo group but remained stable in the topiramate group. Patients were more satisfied with the efficacy of topiramate than with that of placebo, whereas satisfaction with tolerability was similar in both treatment groups. Interpretation Sustained benefit was reported after discontinuation of topiramate, although number of migraine days did increase. These findings suggest that patients should be treated for 6 months, with the option to continue to 12 months in some patients. [less ▲]

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See detailApplication du protocole Ovsynch au traitement du kyste ovarien chez la vache
Hanzen, Christian ULg

Conference (2007, December)

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See detailThe synchronic layering of English size and Type noun constructions
Brems, Lieselotte ULg

Doctoral thesis (2007)

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See detailCdk2 Is Dispensable for Adult Hippocampal Neurogenesis
Vandenbosch, Renaud ULg; Borgs, Laurence ULg; Beukelaers, Pierre ULg et al

in Cell Cycle (Georgetown, Tex.) (2007), 6(24), 3065-9

Granule neurons of the dentate gyrus (DG) of the hippocampus undergo continuous renewal throughout life. Among cell cycle regulators, cyclin-dependent kinase 2 (Cdk2) is considered as a major regulator of ... [more ▼]

Granule neurons of the dentate gyrus (DG) of the hippocampus undergo continuous renewal throughout life. Among cell cycle regulators, cyclin-dependent kinase 2 (Cdk2) is considered as a major regulator of S-phase entry. We used Cdk2-deficient mice to decipher the requirement of Cdk2 for the generation of new neurons in the adult hippocampus. The quantification of cell cycle markers first revealed that the lack of Cdk2 activity does not influence spontaneous or seizure-induced proliferation of neural progenitor cells (NPC) in the adult DG. Using bromodeoxyuridine incorporation assays, we showed that the number of mature newborn granule neurons generated de novo was similar in both wild-type (WT) and Cdk2-deficient adult mice. Moreover, the apparent lack of cell output reduction in Cdk2(-/-) mice DG did not result from a reduction in apoptosis of newborn granule cells as analyzed by TUNEL assays. Our results therefore suggest that Cdk2 is dispensable for NPC proliferation, differentiation and survival of adult-born DG granule neurons in vivo. These data emphasize that functional redundancies between Cdks also occur in the adult brain at the level of neural progenitor cell cycle regulation during hippocampal neurogenesis. [less ▲]

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See detailColliding-wind binaries as non-thermal X-ray emitters: an observational investigation from XMM-Newton to next generation X-ray observatories
De Becker, Michaël ULg

Poster (2007, December)

The investigation of massive stars in the radio domain revealed about 25 years ago that some of them are synchrotron emitters, showing that these objects are able to accelerate particles up to ... [more ▼]

The investigation of massive stars in the radio domain revealed about 25 years ago that some of them are synchrotron emitters, showing that these objects are able to accelerate particles up to relativistic velocities. In this context, non-thermal emission processes such as inverse Compton scattering are expected to be at work in the high-energy domain. For this reason, an observational campaign devoted to the X-ray investigation of non-thermal radio emitters has been carried out with XMM-Newton. However, considering the rather strong thermal X-ray emission from these systems below 10 keV, XMM-Newton does not appear to be the ideal observatory to detect their putative non-thermal X-rays. As a consequence, the advent of next generation X-ray observatories with a bandpass extending significantly above 10 keV (SIMBOL-X, XEUS, NEXT) is expected to provide important results related to the non-thermal high-energy emission from colliding-wind binaries and their capability to accelerate particles. [less ▲]

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See detailMeridional reorganizations of marine and terrestrial productivity during Heinrich events
Menviel, L.; Timmermann, Anne-Marie ULg; Mouchet, Anne ULg et al

Conference (2007, December)

To study the response of the global carbon cycle to a weakening of the Atlantic Meridional Overturning Circulation (AMOC) a series of freshwater perturbation experiments is conducted both, under pre ... [more ▼]

To study the response of the global carbon cycle to a weakening of the Atlantic Meridional Overturning Circulation (AMOC) a series of freshwater perturbation experiments is conducted both, under pre-industrial and glacial conditions using the earth system model of intermediate complexity LOVECLIM. A shutdown of the AMOC leads to substantial cooling of the North Atlantic, a weak warming of the southern hemisphere, intensification of the northeasterly trade winds and a southward shift of the Intertropical Convergence Zone (ITCZ). Trade wind anomalies change upwelling in the tropical oceans and hence marine productivity. Furthermore, hydrological changes associated with a southward displacement of the ITCZ, lead to a reduction of terrestrial carbon stocks mainly in northern Africa and northern South America, in agreement with paleo-proxy data. In the freshwater perturbation experiments, the ocean acts as a sink of CO2, primarily through increased solubility. The net atmospheric CO2 anomaly induced by a shutdown of the AMOC amounts to about +15 ppmv and --10 ppmv for pre-industrial and glacial conditions, respectively. This background state dependence can be explained by the fact that the glacial climate is drier and the terrestrial vegetation therefore releases a smaller amount of carbon to the atmosphere. This study demonstrates that the net CO2 response to large-scale ocean circulation changes has significant contributions both, from the terrestrial and marine carbon cycle. [less ▲]

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See detailCaractérisation physiologique et biochimique du processus de vieillissement du tubercule de pomme de terre (Solanum tuberosum L.)
Delaplace, Pierre ULg

Doctoral thesis (2007)

Potato seed tuber is considered as a model organ to study plant ageing. Besides, its physiological age greatly influences germination pattern and thus agronomical performance. In order to unravel the ... [more ▼]

Potato seed tuber is considered as a model organ to study plant ageing. Besides, its physiological age greatly influences germination pattern and thus agronomical performance. In order to unravel the biochemical processes underlying ageing, potato seed tubers (cv. Bintje and Désirée) were stored at 4°C for 7 months and regularly sampled to assess both physiological and biochemical parameters. Physiological age markers (PAI, incubation period) evolution was measured and allowed us to define a reference frame more accurate than the chronological age. A correlation has also been established with the growth parameters (number of stems, duration before emergence). In parallel, two biochemical approaches allowed us to assay proteome and antioxidant system modifications occurring during ageing. Protein pattern evolution was assessed by DIGE after hot SDS extraction. During ageing, 93 spots were strictly up- or down- regulated while 4 others exhibited an abundance curve with a transient maximum. After manual picking of 43 selected spots based on their expression profile, 32 proteins were identified by MS/MS. Differentially expressed proteins are mainly involved in patatin catabolism, stress response, glycolysis, protein turn-over and lipid oxidation. A complementary targeted approach has then been set up based on the free radical ageing theory. SOD, CAT, APX and POX activities as well as ascorbate, glutathione, carotenoid and phenolic compound contents were measured during ageing. These data seem to indicate that the antioxidant system undergoes marked changes in response to an increased production of reactive oxygen species. However, no accumulation of oxidative damages has been observed on lipids and proteins. All these kinetic data allowed us to build an integrated ageing model. These results are discussed in the above-mentioned theoretical context. [less ▲]

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See detailNumerical and analytical investigations on iron columns reinforced by FRP under axial compression
Ly, Dong Phuong Lam ULg; Rondal, Jacques ULg; Jaspart, Jean-Pierre ULg

in Smith, S. T. (Ed.) Asia-Pacific Conference on FRP in Structures-APFIS07 (2007, December)

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See detailThe microstructure of hybrid silica gels and its modification by evaporative and supercritical dryings
Gommes, Cédric ULg; Blacher, Silvia ULg; Pirard, Jean-Paul ULg et al

in Journal of Sol-Gel Science and Technology (2007), 44(3), 211-218

The effect of evaporative drying on the pore size of two series of hybrid silica gels is investigated by combining beam bending on the gels and mercury porosimetry on the aerogels and xerogels with ... [more ▼]

The effect of evaporative drying on the pore size of two series of hybrid silica gels is investigated by combining beam bending on the gels and mercury porosimetry on the aerogels and xerogels with transmission electron microscopy on the xerogels. It is shown that the shrinkage of the pores during drying is different in the two series: in one series the pores shrink proportionally to their volume, in the other the pores collapse until they all reach the same size. The experimental data enable us to discuss the relation between these two different behaviours and the different morphology of the two series of gels. [less ▲]

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